Penn Pro Marathon RD Tennis Ball

Penn's Longest-Lasting Ball. Built for Clay & Indoor Courts. Penn Pro Marathon RD.

The Penn Pro Marathon RD is Penn's longest-lasting premium regular duty tennis ball — engineered for clay and indoor court surfaces where durability, consistent bounce, and moisture resistance matter most. Trusted by competitive players and teaching professionals, the Marathon RD delivers reliable performance and exceptional longevity from the first serve to the final point.

Technology

• Encore Core Technology: Penn's advanced rubber core compound engineered for top-notch longevity — 22% more durable than standard cores, helping the ball retain its pressure, structure, and bounce across long training sessions and extended match play.
• LongPlay Regular Duty Felt: High-tenacity woven felt optimized for clay and indoor surfaces — thinner and more tightly woven to resist absorbing moisture and clumping with dirt, maintaining a true bounce and predictable speed throughout play.
• Smart Optik Visibility: Brighter, high-visibility felt treatment that enhances ball tracking against clay backdrops and indoor court surfaces — helping players anticipate trajectory and prepare shots with greater confidence.

Purchasing Options

• Can (3 balls): $5.25
• Case (24 cans / 72 balls): $114.95

⚠️ Shipping Note: Cases of tennis balls ship as heavy freight and do not qualify for free shipping. Shipping charges will be calculated at checkout.